ggvis: both static and interactive graphics, interactive is very much a work in progress (Wickham)plotly: has come a long way in the last 12 months, part of Carson Sievert's PhD thesis research. The beuty is that is builds directly onto ggplot2animint: Hasn't progressed much in the last year, needs special copy of ggplot2 (Hocking, et al)htmlwidgets: has progressed a lot in 12 months, providing the base for other packages, e.g.plotly(Chang)rCharts,rbokeh,gridSVG,epivizr